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Everything with a temperature emits radiation!
Everything with a temperature emits radiation!
Described by Stefan-Boltzmann Law:
E = σT4 where
E is radiation emitted (units: W/m2)
σ is the Stefan-Boltzmann constant (5.67x10-8 W/m2K4 ), and
T is temperature (units: K).
Radiation is classified by its wavelength
Radiation is classified by its wavelength
Wavelength (or peak-to-peak distance) denoted by λ
Typical units for λ range from 𝜇m to m (1 𝜇m = 10-6 m)
Described by Wien's Law:
λ = C ⁄T where
λ is the wavelength of emission (units: micrometers, microns, µm),
C is Wien's constant (3000 µm*K), and
T is temperature (units: K).
Relationships:
The higher the temp - > the shorter the wave
The shorter the wave, the more energy it carries!
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